It is impossible to discuss buying Windows 7 without a massive caveat: Because Microsoft no longer issues security patches, a Windows 7 machine connected to the internet is a sitting duck for modern exploits. If you are buying it to run legacy hardware (like a laboratory scanner or a CNC machine) or for "period-correct" gaming, it is best kept offline or behind a very restrictive firewall. Final Verdict
Many sites sell "OEM keys" for a few dollars. While these often work for activation, they exist in a legal gray area. Microsoft intended these keys for system builders (like Dell or HP), and they are technically tied to the first motherboard they are installed on. buy windows 7 professional 64 bit
You won't find Windows 7 on the shelves of Best Buy or directly from Microsoft’s digital store. To "buy" it now, you generally have three paths, each with its own set of risks: It is impossible to discuss buying Windows 7
Necessary for connecting to a corporate network. While these often work for activation, they exist